Channeling-machine.



P. L. HARMON.

OHANNELING MACHINE.

APPLIOATION FILED JAN. 30, 1913.

Patented Dec.30, 1913.

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wmses Imam)" W15? M {4m 7(%;77y m wwfm F. L. HARMON. GHANNELING MACHINE.

APPLIOATION FILED JAN. so, 1913.

Patented Dec. 30, 1913.

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UNTTED STATES n'r anion.

FRANK L. EARMON, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

CHANNELING-MACHINE.

To all whom it may concern Be it known that I, FRANK L. HARMON, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Channeling- Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appert-ains to make and use the same.

The invention relates to channeling or rounding and channeling machines, and more particularly to machines adapted to channel or round and channel the soles of shoes after the outer sole has been temporarily secured in position preparatory to permanently sewing or otherwise securing it to the shoe.

In doing certain classes of work it is desirable that the channel be cut in certain parts of the sole, while other parts remain unchanneled, and it is the object of the present invention to provide a novel and improved mechanism for throwing the channeling or grooving knife into and out of action during the operation of the machine in which the knife is incorporated.

To this end the invention consists of the features of construction and combinations of parts hereafter described and referred to in the claims.

The invention will be readily understood from an inspection of the accompanying drawings and the following detailed description of the mechanism illustrated therein.

In the drawings, Figure 1 is a side elevation of a rounding and channeling machine embodying the invention in its preferred form; Fig. 2 is a vertical sectional detail showing a part of the mechanism for throwing the channel knife into and out of operation; Fig. 3 is a front elevation of the carrier slide upon which the channel knife and sole supporting devices are carried; Fig. 4 is a side elevation looking toward the left in Fig. 8; Fig. 5 is a plan view of the mechanism shown in Fig. 3; Fig. 6 is a partial plan view similar to Fig. 5, showing the knife operating cam slide in a different position; Fig. 7 is a detail side elevation with Specification of Letters Patent.

Application filed. January 30, 1913.

Patented Dec. 30, 1913.

Serial No. 745,142.

the parts in the position shown in Fig. 6; and Fig. 8 is a detail view of a part of the knife operating mechanism.

In the drawings the invention is shown as embodied in the rounding and channeling machine shown and described in Patent No. 1,030,606, dated January 25, 1912. This machine is provided with a trimming knife 1, a channel knife 2, a feed jaw 3, a crease guide 4, and a forepart guide 5 which is movable into and out of operative position by mechanism fully described in the above patent. The sole support and channel knife are carried on a carrier slide 6 which is mounted for vertical movement in the support 7. The support is vibrated and the carrier slide is moved vertically by devices fully described in the above patent.

In the embodiment of the invention shown the channel knife 2 is provided with a shank 8 fitted to slide within a groove formed in the upper face of the sole support-ing block 9. The knife is advanced and retracted to render it active or inactive by means of a segmental cam slide 10 mounted to slide transversely in the block 9, and provided with a cam slot 11 engaging a pin 12 which depends from the shank of the knife. The block 9 is provided with segmental ribs 13 engaging curved guiding slots formed in the carrier slide 6. The center of curvature of the guiding slots and ribs is substantially at the point of the channel knife, so that the sole supporting block may rock about the point of operation of the channel knife to accommodate itself to the surface of the sole at the point of operation. The block is retained in the carrier slide by a spring pressed pin 14, the end of which engages a slot 15 in the back of the block. The retaining pin may be readily disengaged from the block when it is desired to remove the block from the carrier slide by means of a transverse pin 16 which extends through the retaining pin and through a hole 17 in the carrier slide, and is provided with heads 18 at the sides of the carrier slide.

The knife advancing and retracting cam slide 10 is shifted to advance or retract the knife by means of two abutments 19 and 20 arranged at opposite ends of the slide, and

adapted to be shifted to move the cam slide into the position shown in Fig. 5, or into the position shown in Fig. 6. The cam slide may be retained in the position into which it is moved by the abutments l9 and 20 by a spring pressed pin 10 which frictionally engages the under side of the slide and pre vents its accidental displacement. In the construction shown the abutments 19 and 20 are formed by the arms of a yoke 21 which is secured to the upper end of an arm 22. The arm 22 is secured to one end of a rock sleeve 28, the other end of which carries an arm 24 provided with a cam slot 25. The cam slot is engaged by a pin 26 carried by a lever 27 which is connected through a link 28 with the treadle operated lever 29.

Then the arm 22 is in the position inclicated in the main views of the drawings, the cam slide 10 will be in the position indicated in Fig. 5, and will hold the knife in retracted or inactive position. If the lever 27 is actuated to move the pin 26 from the position indicated in full lines in Fig. 8 to the position indicated in the lower dotted lines, the arm 22 will be rocked toward the right in Fig. 8, moving the abutment 20 to shift the cam slide 10 from the position indicated in Fig. 5 to the position indicated in Fig. 6, thus projecting the channel knife into active position. The extent to which the knife is projected, and therefore the depth of the channel cut, will be determined by the position into which the abutment 20 is moved. In order that this position may be varied to vary the depth of cut, the arm 22 is provided with an adjustable stop screw 30 adapted to engage the side of the carrier slide 6 and determine the position of the abutment 20. In order that the actuating arm 27 may continue its movement after the movement of the arm 22 and rock sleeve 23 has been arrested by the stop screw 30, the arm 24 is provided with a spring section 31 forming one side of the cam slot 25 and adapted to yield after the screw 30 engages the carrier slide.

Since the carrier slide 6 and knife carrying block 9 vibrate in the direction of the feed during the operation of the machine, the distance between the abutments 19 and 20 is greater than the length of the cam slide 10, so that during the operation of the machine the cam slide will play idly between the abutments after it has been shifted to either advance or retract the knife until the positions of the abutments are again changed. The abutments are also so shaped that they will engage and operate the cam slide, whatever position may be assumed by the block 9 in accommodating itself to the angle or curvature of the sole at the point being operated upon by the channeling and trimming knives.

While it is preferred to employ the specific construction and arrangement of parts shown and described, especially in embodying the invention in the rounding and channeling machine of the patent above referred to, it will be understood that this construction and arrangement is not essential to the broader features of the invention, and may be varied and modified as found desirable or best suited to the construction of the machine in which the invention is to be embodied.

Having explained the nature and object of the invention, and specifically described one form of machine in which it may be embodied, what is claimed is 1. A channeling machine, having, in combination, a sole support mounted to rock to accommodate itself to the surface of the sole, a knife mounted in the support, a cam mounted to slide transversely in the support, and mechanism for actuating the cam during the operation of the machine on a sole to advance and retract the knife.

2. A channeling machine, having, in combination, a knife support, a knife mounted in the support, a transversely movable cam for advancing and retracting the knife, op posed abutments for operating the cam, and mechanism for shifting the abutments to advance or retract the knife.

3. A channeling machine, having, in combination, a vertically movable carrier, a knife mounted on the carrier, a transversely movable cam for advancing and retracting the knife, opposed abutments for actuating the cam, and mechanism for shifting the abutments during the operation of the machine.

4. A channeling machine, having, in combination, a knife support, a knife mounted in the support, a transversely movable cam slide for advancing and retracting the knife, abutments arranged at opposite ends of the slide, and means for operating the abutments to shift the slide.

5. A channeling machine, having, in combination, a vibrating knife support, a knife mounted in the support, a cam slide mounted in the support for advancing and retracting the knife, abutments between which the slide plays during the vibration of the knife support, and means for shifting the abutments to operate the cam slide.

6. A channeling machine, having, in combination, a knife support, a knife mounted in the support, a transverse slide connected to advance and retract the knife. opposed abutments for operating the slide, and means for shifting the abutments.

7. A channeling machine, having, in combination, a knife support, a knife mounted in the support, a transversely movable cam slide for advancing and retracting the knife, opposed abutments for operating the cam slide, and an adjustable stop for determining the slide shifting position of one of the abutments, and mechanism for operating the 10 abutments includinga yielding connection.

FRANK L. HARMON.

ing the slide shifting position of one of the abutments.

8. A channeling machine, having, in combination, a knife support, a knife mounted in the support, a transversely movable cam slide, for advancing and retracting the knife, opposed abutments for operating the cam slide, an adjustable stop for determinlVitnesses:

CHESTER E. ROGERS, J OHN J. HEYs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

